https://community.hpe.com/t5/operating-system-linux/nfs-mount-remembers-gids-even-after-they-are-removed-from-a-user/m-p/4023899#M28891 Hey all,<BR /><BR />I am seeing something kooky and perhaps its a known thing that I've just not seen before. I have a RHEL4 server that has a directory mounted from an HP-UX server. The mount works fine, we can see data, etc... We have the owner and group permissions set and don't allow "others" into the NFS mount (permissions of 750). I can't change directory into these mounts as my own personal ID because of permissions, which is correct.<BR /><BR />When I added myself to the group that has permission to go into the NFS mounts I was immediately able to do so, which is good. However, when I removed myself from the group that has permission to these directories I am still able to go into the NFS mounts. I logged out and back in and was STILL able to go into these NFS mounts even though I no longer had the rights to do so.<BR /><BR />After unmounting and remounting the NFS filesystems the permissions once again kept me from getting into the NFS mounts. Is that normal? Does NFS cache permissions such that a person could retain permission to access directories even though those permissions have been removed?<BR /><BR />Thanks in advance!<BR /><BR />Tim Wed, 20 Jun 2007 16:39:52 GMT Timothy Czarnik 2007-06-20T16:39:52Z https://community.hpe.com/t5/operating-system-linux/nfs-mount-remembers-gids-even-after-they-are-removed-from-a-user/m-p/4023899#M28891 Hey all,<BR /><BR />I am seeing something kooky and perhaps its a known thing that I've just not seen before. I have a RHEL4 server that has a directory mounted from an HP-UX server. The mount works fine, we can see data, etc... We have the owner and group permissions set and don't allow "others" into the NFS mount (permissions of 750). I can't change directory into these mounts as my own personal ID because of permissions, which is correct.<BR /><BR />When I added myself to the group that has permission to go into the NFS mounts I was immediately able to do so, which is good. However, when I removed myself from the group that has permission to these directories I am still able to go into the NFS mounts. I logged out and back in and was STILL able to go into these NFS mounts even though I no longer had the rights to do so.<BR /><BR />After unmounting and remounting the NFS filesystems the permissions once again kept me from getting into the NFS mounts. Is that normal? Does NFS cache permissions such that a person could retain permission to access directories even though those permissions have been removed?<BR /><BR />Thanks in advance!<BR /><BR />Tim Wed, 20 Jun 2007 16:39:52 GMT https://community.hpe.com/t5/operating-system-linux/nfs-mount-remembers-gids-even-after-they-are-removed-from-a-user/m-p/4023899#M28891 Timothy Czarnik 2007-06-20T16:39:52Z https://community.hpe.com/t5/operating-system-linux/nfs-mount-remembers-gids-even-after-they-are-removed-from-a-user/m-p/4023900#M28892 I don't suppose you're running 'nscd' ? Wed, 20 Jun 2007 17:09:35 GMT https://community.hpe.com/t5/operating-system-linux/nfs-mount-remembers-gids-even-after-they-are-removed-from-a-user/m-p/4023900#M28892 Stuart Browne 2007-06-20T17:09:35Z https://community.hpe.com/t5/operating-system-linux/nfs-mount-remembers-gids-even-after-they-are-removed-from-a-user/m-p/4023901#M28893 Nope, nscd is not running on the server. Wed, 20 Jun 2007 17:25:37 GMT https://community.hpe.com/t5/operating-system-linux/nfs-mount-remembers-gids-even-after-they-are-removed-from-a-user/m-p/4023901#M28893 Timothy Czarnik 2007-06-20T17:25:37Z https://community.hpe.com/t5/operating-system-linux/nfs-mount-remembers-gids-even-after-they-are-removed-from-a-user/m-p/4023902#M28894 Hi Tim,<BR /><BR />If you mount the filesystem with the "noac" option do you still get the same behavior?<BR /><BR />Regards,<BR /><BR />Dave Thu, 21 Jun 2007 21:46:08 GMT https://community.hpe.com/t5/operating-system-linux/nfs-mount-remembers-gids-even-after-they-are-removed-from-a-user/m-p/4023902#M28894 Dave Olker 2007-06-21T21:46:08Z